Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 21

Waxing Crescent 2%

No Rise

15:51

10 Good
11 OK
12 Good
13 OK
14 Good
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:37, Set: 15:56, Transit: 11:46. Moon - Rise: No Rise, Set: 15:51. Civil Dark: 16:35 - 06:57. Nautical Dark: 17:18 - 06:14. Astro Dark: 17:59 - 05:33

Total Clouds (% Sky Obscured)

18
22
11
19
8
59
62
83
43
82
90
95
97
94
99
100
99
100
100
100
100
99
100
99

Low Clouds (% Sky Obscured)

18
15
0
17
0
14
35
34
31
29
26
25
25
24
19
11
16
9
0
0
38
47
71
75

Medium Clouds (% Sky Obscured)

0
3
4
4
4
7
8
4
3
22
71
87
96
93
99
100
97
100
100
100
100
99
92
97

High Clouds (% Sky Obscured)

17
2
5
7
3
40
40
78
43
12
60
76
72
87
69
100
96
100
100
100
100
77
100
83

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
4
5
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
17
52
73
83
65
58

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.2
0

Wind Speed/Direction (mph)

8
9
8
7
7
6
6
7
7
7
7
8
10
11
12
12
13
14
14
13
14
15
16
16

Chance of Frost

Temperature (°C)

2
3
4
5
5
4
2
1
1
0
-0
0
1
1
1
2
2
2
2
3
3
3
4
4

Feels Like (°C)

-1
1
2
3
3
2
-1
-2
-3
-4
-4
-5
-4
-4
-4
-5
-5
-4
-4
-3
-3
-3
-2
-2

Dew Point (°C)

-1
-1
0
0
1
1
0
-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
1
2
3
3

Relative Humidity (%)

81
76
73
73
78
83
86
89
89
91
91
89
86
83
80
80
77
77
79
77
86
93
94
93

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1023
1023
1022
1021
1020
1019
1019
1018
1018

Ozone (du)

283
282
279
278
275
271
267
267
268
267
266
263
262
260
254
253
255
255
258
262
265
272
274
275

Saturday 22

Waxing Crescent 5%

10:27

16:35

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:39, Set: 15:55, Transit: 11:46. Moon - Rise: 10:27, Set: 16:35. Civil Dark: 16:34 - 06:59. Nautical Dark: 17:18 - 06:16. Astro Dark: 17:59 - 05:34

Total Clouds (% Sky Obscured)

99
100
100
98
100
99
100
100
91
83
78
87
100
100
95
100
82
81
89
89
100
100
100
100

Low Clouds (% Sky Obscured)

93
100
93
91
94
99
94
92
91
80
65
52
49
47
44
45
53
56
59
71
81
87
77
100

Medium Clouds (% Sky Obscured)

74
100
100
94
66
43
52
45
55
60
65
60
65
68
71
66
47
59
77
76
100
98
80
75

High Clouds (% Sky Obscured)

58
39
46
27
17
77
57
52
50
62
64
86
100
100
83
100
67
53
50
12
40
45
50
50

ISS Passover

Visibility (miles)

9
2
4
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
3
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
42
69
90
100
100
100
31
2
2
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

95
95
95
89
87
85
55
14
10
8
2
4
4
4
2
0
0
3
11
46
73
68
75
86

Precipitation Amount (mm)

0.7
2.2
1.7
0.5
0.7
0.9
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.2
0.4
0.3

Wind Speed/Direction (mph)

14
14
14
15
14
12
10
8
6
5
5
5
4
4
5
4
6
7
8
10
11
13
13
13

Chance of Frost

Temperature (°C)

5
5
5
6
6
6
6
6
6
5
5
4
4
4
3
3
3
3
4
4
4
5
6
6

Feels Like (°C)

-0
0
1
1
2
2
3
3
4
4
4
3
2
1
-0
1
-1
-0
-1
-1
-1
-0
1
1

Dew Point (°C)

4
4
5
5
5
5
6
5
6
5
4
4
3
3
2
2
2
2
2
2
3
4
5
5

Relative Humidity (%)

94
93
96
94
93
94
96
96
98
98
96
96
94
93
93
93
93
93
89
91
93
93
93
93

Pressure (mb)

1017
1016
1015
1014
1013
1012
1011
1011
1010
1010
1009
1009
1009
1008
1007
1007
1006
1005
1004
1003
1001
1000
999
998

Ozone (du)

276
276
277
274
272
275
278
278
274
273
271
268
265
267
266
265
262
265
265
265
266
267
271
277

Sunday 23

Waxing Crescent 10%

11:17

17:33

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:40, Set: 15:54, Transit: 11:46. Moon - Rise: 11:17, Set: 17:33. Civil Dark: 16:34 - 07:00. Nautical Dark: 17:17 - 06:17. Astro Dark: 17:58 - 05:36

Total Clouds (% Sky Obscured)

91
100
91
78
72
64
70
65
63
55
54
61
62
67
61
91
100
100
100
100
91
79
67
77

Low Clouds (% Sky Obscured)

86
86
54
64
50
46
52
60
63
55
54
61
62
67
47
67
74
91
79
91
82
70
58
61

Medium Clouds (% Sky Obscured)

75
100
74
59
57
21
31
29
14
4
4
6
0
0
28
91
100
99
100
95
60
21
54
22

High Clouds (% Sky Obscured)

50
10
0
0
0
0
0
0
0
0
3
0
0
0
0
4
3
20
63
19
18
39
51
44

ISS Passover

Visibility (miles)

9
9
9
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
47
65
59
13
7
4
3
5
9
13
14
11
5
8
29
37
45
33
39
33
29
20
21

Precipitation Amount (mm)

1.1
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
14
14
16
14
12
11
11
12
12
11
10
9
9
8
8
9
8
7
7
6
5
4
5

Chance of Frost

Temperature (°C)

7
7
7
8
7
7
6
6
6
5
5
5
4
4
4
4
4
4
4
4
4
4
5
5

Feels Like (°C)

3
4
2
2
2
2
3
2
2
2
2
1
1
1
1
0
-1
-1
-1
1
1
2
3
3

Dew Point (°C)

5
4
4
4
3
3
3
3
3
2
2
2
2
2
2
2
2
3
3
3
3
3
4
4

Relative Humidity (%)

82
78
77
78
75
75
79
82
82
80
80
85
86
86
86
85
85
93
89
88
89
93
93
93

Pressure (mb)

997
996
995
995
995
995
995
995
995
994
994
994
994
993
993
992
992
992
991
991
992
992
993
994

Ozone (du)

282
285
286
288
287
287
286
287
287
287
289
291
294
297
295
293
294
294
293
297
303
303
304
302

Monday 24

Waxing Crescent 17%

11:52

18:44

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 OK
08 Bad
09 Bad

Sun - Rise: 07:42, Set: 15:53, Transit: 11:46. Moon - Rise: 11:52, Set: 18:44. Civil Dark: 16:33 - 07:02. Nautical Dark: 17:16 - 06:18. Astro Dark: 17:57 - 05:37

Total Clouds (% Sky Obscured)

89
100
94
87
84
84
81
77
76
78
77
76
78
78
74
69
64
70
75
55
30
33
28
70

Low Clouds (% Sky Obscured)

65
68
70
69
71
70
72
66
68
68
64
65
52
67
53
41
34
40
47
51
30
33
28
53

Medium Clouds (% Sky Obscured)

33
43
34
81
14
12
59
55
3
3
46
56
65
6
4
6
32
63
6
4
0
2
0
45

High Clouds (% Sky Obscured)

53
75
54
30
1
1
4
1
1
1
0
1
1
0
2
2
2
2
2
2
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
4
9
9
9
9
9
9
9
9
9
9
3
9
9
9
9
9
6

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

24
24
33
38
43
63
61
31
15
22
10
17
7
4
7
23
49
41
18
7
7
4
22
26

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.3
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
9
10
10
11
12
14
13
14
14
13
13
12
11
10
11
11
15
11
12
12
13
13
13

Chance of Frost

Temperature (°C)

5
6
7
8
8
7
7
7
7
7
6
6
5
5
5
4
4
4
4
4
3
2
2
2

Feels Like (°C)

2
3
4
5
4
3
2
2
1
1
1
1
1
0
1
0
-1
-3
-1
-2
-3
-2
-2
-2

Dew Point (°C)

4
5
5
4
4
4
5
3
3
2
2
2
2
2
1
2
2
2
2
1
1
0
-0
1

Relative Humidity (%)

91
90
85
78
77
79
88
78
75
74
72
75
78
80
76
86
85
88
86
80
86
85
83
89

Pressure (mb)

994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1007
1008
1009
1009
1010
1010
1011
1012
1013
1013

Ozone (du)

301
304
305
307
308
307
306
308
309
310
315
310
302
301
299
296
295
296
301
304
310
312
312
307

Tuesday 25

Waxing Crescent 25%

12:17

20:01

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 Good
03 OK
04 Good
05 OK
06 Good
07 Good
08 Good
09 Good

Sun - Rise: 07:43, Set: 15:52, Transit: 11:47. Moon - Rise: 12:17, Set: 20:01. Civil Dark: 16:32 - 07:03. Nautical Dark: 17:15 - 06:20. Astro Dark: 17:56 - 05:38

Total Clouds (% Sky Obscured)

67
71
70
61
48
43
41
37
34
32
24
20
18
15
11
7
1
5
7
10
7
3
0
3

Low Clouds (% Sky Obscured)

53
56
54
52
45
41
41
37
34
32
24
20
18
15
11
7
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

2
5
11
15
17
12
12
11
9
5
0
0
0
0
0
0
0
5
7
10
7
3
0
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
0
0
3
0
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
9
21
19
13
16
9
5
14
7
3
10
4
1
9
3
0
6
2
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
14
15
14
13
12
12
10
9
9
9
8
8
8
8
7
7
7
6
6
5
5
5
4

Chance of Frost

Temperature (°C)

4
5
5
6
6
6
5
5
4
4
3
3
2
2
2
2
1
1
1
1
1
1
1
2

Feels Like (°C)

-2
-1
-1
0
2
4
2
3
2
2
1
1
0
0
-0
0
-1
-1
-1
-2
-1
-3
-3
-2

Dew Point (°C)

0
1
3
4
3
3
3
3
2
2
2
1
1
1
0
0
0
-0
0
-1
0
0
-1
-1

Relative Humidity (%)

77
76
88
86
81
79
82
88
88
89
91
91
89
91
91
91
93
93
94
92
94
93
88
86

Pressure (mb)

1014
1014
1014
1014
1015
1015
1016
1017
1018
1019
1019
1020
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022

Ozone (du)

303
305
306
305
305
310
309
303
297
295
297
294
293
295
297
295
293
291
290
288
287
286
285
285

Wednesday 26

Waxing Crescent 34%

12:35

21:21

10 Good
11 Good
12 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 07:45, Set: 15:51, Transit: 11:47. Moon - Rise: 12:35, Set: 21:21. Civil Dark: 16:31 - 07:05. Nautical Dark: 17:14 - 06:21. Astro Dark: 17:56 - 05:40

Total Clouds (% Sky Obscured)

7
13
29
41
50
63
78
92
95
97
100
100
100
100
100
100
100
100
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

0
0
0
1
1
12
22
33
42
48
56
66
75
85
88
91
94
88
76
62
70
76
86
84

Medium Clouds (% Sky Obscured)

7
13
29
27
20
30
34
34
31
35
43
48
54
59
61
63
65
52
41
35
44
66
76
79

High Clouds (% Sky Obscured)

6
2
9
17
18
20
22
24
49
74
98
99
99
100
99
97
95
84
73
65
76
90
99
90

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
3
2
5
5
6
9
9
5
4
4
1
11
24
38
39

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
6
6
6
6
6
6
6
7
7
7
7
7
7
8
8
9
9
10
10
11
11
12

Chance of Frost

Temperature (°C)

3
4
5
5
5
5
4
4
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
7

Feels Like (°C)

-2
-2
-1
4
3
3
3
3
2
-0
-1
0
0
0
1
1
1
1
1
2
2
2
2
2

Dew Point (°C)

0
1
1
2
2
2
2
1
1
1
1
2
2
2
3
3
3
3
4
4
5
5
5
6

Relative Humidity (%)

82
77
74
76
79
82
83
85
86
85
86
86
88
88
89
91
91
89
91
93
94
93
93
91

Pressure (mb)

1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020
1019
1019
1018
1018
1018
1018
1017

Ozone (du)

284
284
284
283
282
281
280
279
278
278
278
278
278
277
277
276
275
274
274
273
272
272
272
272

Thursday 27

Waxing Crescent 44%

12:49

22:42

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:47, Set: 15:50, Transit: 11:47. Moon - Rise: 12:49, Set: 22:42. Civil Dark: 16:30 - 07:06. Nautical Dark: 17:14 - 06:22. Astro Dark: 17:55 - 05:41

Total Clouds (% Sky Obscured)

94
92
89
86
83
82
85
81
81
83
86
86
88
90
91
90
90
91
91
95

Low Clouds (% Sky Obscured)

88
89
81
75
64
71
83
81
81
83
83
82
77
73
60
51
40
36
32
28

Medium Clouds (% Sky Obscured)

76
73
67
65
58
39
15
4
4
4
4
11
17
24
34
36
34
28
41
40

High Clouds (% Sky Obscured)

81
72
66
58
66
66
70
71
74
75
79
78
75
76
80
83
88
75
55
21

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

36
31
22
12
1
0
0
0
0
0
0
0
0
0
5
8
9
7
4
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
13
12
12
12
12
11
11
11
12
12
12
11
11
9
9
9
9
9

Chance of Frost

Temperature (°C)

8
8
9
10
10
10
10
9
9
9
9
9
9
9
8
8
8
8
8
8

Feels Like (°C)

2
2
2
7
7
8
8
8
8
6
7
7
7
7
7
6
6
6
6
5

Dew Point (°C)

6
6
6
7
8
8
8
8
8
8
8
8
8
8
7
8
7
8
7
7

Relative Humidity (%)

90
85
82
84
85
87
90
91
96
95
95
95
95
95
93
95
95
96
95
93

Pressure (mb)

1017
1017
1016
1016
1016
1016
1016
1015
1015
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

272
271
270
269
268
267
266
265
264
264
263
263
265
266
268
268
268
268
266
264

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 21/11/25 10:25:59. Forecast: 21/11/25 to 27/11/25. Timezone: UTC+0.00